Testing apparatus



FIG. 1 is a perspective view of a testing apparatus, according to a first embodiment of my new design in a closed configuration;

FIG. 2 is perspective view of FIG. 1 in an open configuration;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a bottom view of FIG. 2;

FIG. 5 is a front view of FIG. 2;

FIG. 6 is a back view of FIG. 2;

FIG. 7 is a left side view of FIG. 2; and,

FIG. 8 is a right side view of FIG. 2. 

CLAIM The ornamental design for a testing apparatus, as shown and described. 